Who said "Change is the only constant in life."?

This quote is attributed to Frasier Crane.

Change is the only constant in life. - Frasier Crane

"Change is the only constant in life."

Frasier Crane Change

"I'm listening."

"Tossed salad and scrambled eggs."

"It's a Frasier kind of day."

"Excelsior!"

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."